/**
* テキストを合成
*
* <pre>
* 指定位置にテキストを追加します。$alignに右寄せ（_BEAR_ALIGN_RIGHT)を指定
* すると$xは右からのスペースになります。fontはターミナルでfc-listで得られるフ
* ォントの名前を使用します。イタリックは$slantにCAIRO_FONT_SLANT_ITALIC,
* ボールドは$weightにCAIRO_FONT_WEIGHT_BOLDを指定します。
* </pre>
*
* @param string $text テキスト
* @param int $x X座標
* @param int $y Y座標
* @param int $size フォントサイズ
* @param int $align BEAR_Img::LEFT | BEAR_Img::CENTER | BEAR_Img::RIGHT
* @param array $colorOne 内側カラー array($r, $g, $b)
* @param array $colorTwo アウトラインカラー array($r, $g, $b)
* @param string $font フォント
* @param float $textAlpha アルファブレンディング(0..1)
* @param float $lineWidth ラインの幅
* @param int $slant CAIRO_FONT_SLANT_NORMAL | CAIRO_FONT_SLANT_ITALIC
* @param int $weight CAIRO_FONT_WEIGHT_NORMAL | CAIRO_FONT_WEIGHT_BOLD
*
* @return void
*/
public function addText($text, $x = 0, $y = 0, $size = 120, $align = BEAR_Img::LEFT, $colorOne = false, $colorTwo = false, $font = 'Arial', $textAlpha = 0.85, $lineWidth = 0.75, $slant = CAIRO_FONT_SLANT_NORMAL, $weight = CAIRO_FONT_WEIGHT_NORMAL)
{
//フォントカラー
cairo_set_source_rgb($this->image, 0.0, 0.0, 1.0);
cairo_select_font_face($this->image, $font, $slant, $weight);
cairo_set_font_size($this->image, $size);
$this->_fontInfo = cairo_text_extents($this->image, $text);
$this->_log->log('cairo _fontInfo', $this->_fontInfo);
switch ($align) {
case BEAR_Img::CENTER:
$x = $this->_srcWidth / 2 - $this->_fontInfo['x_advance'] / 2 + $x;
break;
case BEAR_Img::RIGHT:
$x = $this->_srcWidth - $this->_fontInfo['x_advance'] - $x;
break;
case BEAR_Img::LEFT:
default:
break;
}
cairo_move_to($this->image, $x, $y + $size);
cairo_text_path($this->image, $text);
//テキスト中身
if ($colorOne) {
$colorOneZero = $colorOne[0] / 255;
$colorOneOne = $colorOne[1] / 255;
$colorOneTwo = $colorOne[2] / 255;
cairo_set_source_rgba($this->image, $colorOneZero, $colorOneOne, $colorOneTwo, $textAlpha);
} else {
cairo_set_source_rgba($this->image, 1, 1, 1, $textAlpha);
}
cairo_fill_preserve($this->image);
//テキストボーダー
if ($colorTwo) {
$colorTwoZero = $colorTwo[0] / 255;
$colorTwoOne = $colorTwo[1] / 255;
$colorTwoTwo = $colorTwo[2] / 255;
cairo_set_source_rgba($this->image, $colorTwoZero, $colorTwoOne, $colorTwoTwo, $textAlpha);
} else {
cairo_set_source_rgba($this->image, 0, 0, 1, $textAlpha);
}
cairo_set_line_width($this->image, $lineWidth);
//cairo_stroke_preserve($this->image);
cairo_stroke($this->image);
//cairo_show_page($this->image);
}
/**
* Get SVG style definition
*
* Returns a string with SVG style definitions created from color,
* fillstatus and line thickness.
*
* @param ezcGraphColor $color Color
* @param mixed $filled Filled
* @param float $thickness Line thickness.
* @return string Formatstring
*/
protected function getStyle(ezcGraphColor $color, $filled = true, $thickness = 1.0)
{
switch (true) {
case $color instanceof ezcGraphLinearGradient:
$pattern = cairo_pattern_create_linear($color->startPoint->x, $color->startPoint->y, $color->endPoint->x, $color->endPoint->y);
cairo_pattern_add_color_stop_rgba($pattern, 0, $color->startColor->red / 255, $color->startColor->green / 255, $color->startColor->blue / 255, 1 - $color->startColor->alpha / 255);
cairo_pattern_add_color_stop_rgba($pattern, 1, $color->endColor->red / 255, $color->endColor->green / 255, $color->endColor->blue / 255, 1 - $color->endColor->alpha / 255);
cairo_set_source($this->context, $pattern);
cairo_fill($this->context);
break;
case $color instanceof ezcGraphRadialGradient:
$pattern = cairo_pattern_create_radial(0, 0, 0, 0, 0, 1);
cairo_pattern_add_color_stop_rgba($pattern, 0, $color->startColor->red / 255, $color->startColor->green / 255, $color->startColor->blue / 255, 1 - $color->startColor->alpha / 255);
cairo_pattern_add_color_stop_rgba($pattern, 1, $color->endColor->red / 255, $color->endColor->green / 255, $color->endColor->blue / 255, 1 - $color->endColor->alpha / 255);
// Scale pattern, and move it to the correct position
$matrix = cairo_matrix_multiply($move = cairo_matrix_create_translate(-$color->center->x, -$color->center->y), $scale = cairo_matrix_create_scale(1 / $color->width, 1 / $color->height));
cairo_pattern_set_matrix($pattern, $matrix);
cairo_set_source($this->context, $pattern);
cairo_fill($this->context);
break;
default:
cairo_set_source_rgba($this->context, $color->red / 255, $color->green / 255, $color->blue / 255, 1 - $color->alpha / 255);
break;
}
// Set line width
cairo_set_line_width($this->context, $thickness);
// Set requested fill state for context
if ($filled) {
cairo_fill_preserve($this->context);
}
}
